Answer:
PI is part of the formula for the circumference.
Step-by-step explanation:
The formula is c=2π
r.
Hope it helps!
Number 2. x=5/3 and y=5
number 4. x=7/3 and y=-5
that's all i could answer. and for number 1 x=-3
Answer:
divide by 2
Step-by-step explanation:
to go to 12 to 6 , you will have to divide by 2
12/2 = 6
12 and 6 are on the same side in both triangles , that is why I used those two numbers to figure out the scale factor
Step-by-step explanation:
Let's call x the lenght and y the height. The perimeter will be:
p = 2x + 2y = 10
When the lenght is halved and the height double we'll have:
p = x + 4y = 14
These 2 equations form a system of equations2 that can be solved and give as result:
y = 3
x = 2